Handheld electronic device accessory



FIG. 1 is a three-quarter perspective view of a handheld electronic device accessory showing the new design;

FIG. 2 is a left side view thereof, with views from the left and right sides being the same;

FIG. 3 is a front view thereof, with views from the front and back sides being the same;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

The environmental features illustrated in broken lines in FIG. 1 form no part of the claimed design. The portions of the handheld electronic device accessory illustrated in broken lines in FIGS. 1–5 form no part of the claimed design. 

The ornamental design for a handheld electronic device accessory, as shown and described. 